how do you respond if altcoins that have never been registered on an exchange can already be traded?
Basically here I just want to buy a Pi mainet that has been mined by the user.
there are some people I know who want to own a Pi, so those who want to sell can dm or telegram me @irsadagustiar.
  for the current price of around $0.3.


Note: prices are subject to change at any time.

Reg : https://bitcointalk.org/index.php?topic=5237735.0